Hand-threading shuttle.



0. DALFOND.

' HAND THREADING SHUTTLE.

APPLICATION FILED JULY 27, 1912.

1,053,160, Patented Feb. 18, 1913.

, atwqs er res unis IQE.

HAiWD-THREADIN SHUTTLE.

Specification/o1 Letters Patent.

Patented Feb. 18,1913.

Application filed July 27, 1912. Serial No. 711,933.

To all whom. it may concern Be it known that I, OCTAVIEN DALroNn, acitizen of the Uni ed States, residing at Fall River, in the county ofBristol and State of Massachusetts, have invented certain new and usefulImprovements in, Hand- Threading Shuttles, of which the following is aspecification.

This invention relates to loonrshuttles, particularly of that typecommonly known as self-threading or hand-threading shuttles.

The object of this invention is to provide an attachment for shuttleshaving the usual delivering eyes and having continuous walls-that is,walls having no slits and therefore retaining their original strengthbymeans of which the strength of the shuttle at the eye is greatlyincreased and the thread fromthe cop or spindle may be positively pushedthrough the eye, which object, among others is accomplished by theconstruction and combination of parts hereinafter more particularly setforth and claimed, and illustrated in the accompanying drawings.

In the accompanying drawings: Figure 1 represents a plan view of so muchof a shuttleas is necessary to illustrate the invention, said shuttlecarrying the invention in one of its embodiments, the thread from the'cop being placed in the thread receiving slot; Fig. 2, a verticalcrossesectional view on the line 2 -2 of Fig. 1, the slide being drawnin and showing the intermediate position ofthe arm and link in dottedlines; Fig. 3, a similar view,-the slide being extended; Fig. 4, alongitudinal vertical scc tional view on the line 1-et.of Fig. 1,looking inthe direction of the arrow, showing the thread lying inthegrooves; Fig. 5-, an enlarged top plan slew of the threader and adjacentparts of the shuttle body, the top part of the eye being partiallybroken away to show the carrier 3 carrying the thread C and being inintermediate position; and Figs. 6, 7 and 8 represent details of variousparts. I

Referring now in detail to the drawings, A designates the body of theshuttle, B the cop or spindle, C the thread carried by said spindle andD the usual V-shape feeding slot or groove" running transversely to theslide or carrier and longitudinally of the said shuttle body. Theshuttle body A is transversely bored in its forward end at the usualpoint for the eye, said transverse bore having communication on itsupper side and at the middle point thereof with the above mentioned slotD which runs transversely thereto, and on its lower side with atransverse slot forming communication between inwardly and downwardlytapering recess E running transversely of said body A and the slot insaid eye 1. An eye 1 is secured in said transverse bore by means ofscrew threaded engagementat both ends thereof and has a narrow slotwhich registers with the transverse slot above mentioned, when the saideye 1 is in position. Said eye 1, which is tubular and of a width equalto the width of the shuttle at this point, is further provided with athread receiving slot 2 ofusual shape, which registers with the bottomof said V,-shaped feeding groove D above mentioned. By reason of itstubular shape this eye 1 forms a strong brace for the parts of theshuttle A at this point. A slide or carrier 3 of cylindrical shape andof such diameter as to make a snug fit in said eye 1 is reciprocatedtherein at 5 in the forward part of the slot 19 in said carrier 3, seeFigs. 2, 3 and 5-; and at the other end at 7 to the bifurcated upper end1 of alink 8 slidably mounted in a deep recess 5) in spring pressedwheel 10 (see Fig. 3) having its edge milled, knurled or otherwiseroughened to provide a frictional surface for the partial rotation byhand of said wheel. This wheel 10 is mounted in bearings 11 of plate 12attached to the bottom of said shuttle by means of screws 13 or in anyother convenient manner-and extends upward into the transverse recess Eabove mentioned, which communicates with the interior of the eye 1 bymeans of the transverse slot above mentioned. fiaid slide or carrier 3is provided with a recess 18 in its rear end and extending from theupper to the lower external faces thereof, to receive the bifurcatedupper end' of link 8 during the various positions of this link 8 and arm41 during the travel to and fro of the carrier 8. This slide or carrier3 is further provided with a central slot 19 extending from a point nearthe forward end of said carrier to and communicating with the recess 18.It is in this slot 19 that the forward end of arm,, 4= is pivoted, asabove stated; so that both.the arm 4 and the link 8 have perfect freedomof motion in all their dillerent poby means of an arm 4 pivoted at oneend' reaches to the thread-receiving slot 2 and is provided on its frontend with an undercut lip 16 and on each side with a thread receivinggroove 17 which communicates therewith, said grooves 17 being in thesame horizontal plane.

The operation is as follows: The thread C is placed inv thethread-receiving slot 2 in advance of the lip 16 of carrier 3. The

wheel 10 is then'turned through an arc of about 90 degrees, against theaction of spring 14. This, through arm 4 and link 8 slidablymounted inrecess 9 in said wheel to simplify and expeditcthe assembling anddisassembling of the device, -forces the carrier 3 to its outermostposition, ,the thread fitting in the grooves 17 so as not to bind themovement of said carrier. The thread C is now removed from the lip ofsaid carrier and held, the wheel 10 is re leased and by means of spring14- it and the carrier 3 are both withdrawn to their original positionsready to repeat the operation.

'Having thus described my invention,

what I claim as new and desire to secure by Letters Patent is:

1. A shuttle body, a transverse eye secured therein and a carrieradapted to re: ciprocate therein, in combination with a spring pressedwheel, a link slidably mounted therein and an arm pivoted at one end tosaid link and at the other to said carrier.

2. A shuttle body, a transverse tubular eye mounted therein and acarrier adapted to reciprocate in said tubular eye, in combination' witha wheel, a link slidably mounted therein, an arm pivoted to said link atone end and to said carrier at the.

other, and means for normally holding said carrier in its innermostposition.

3. A shuttle body, a transverse tubular eye, mounted therein and acarrier adapted to reciprocate in said tubular eye, in combination witha Wheel, a link slidably mounted therein, an arm pivoted to said link atone end and to said carrier atthe other, and means for normally holdingsaidcarrier in its innermost position, said carrier being provided witha slot and a recess to receive respectively the said arm and the end ofsaid link in the various positions of th latter.

n testimony whereof, I have signed my name tothis specification in thepresence of two subscribing witnesses.

OCTAVIEN DALFOND. Witnesses:

Ennns'r H. CAMPBELL, J OI-IN T. SWIFT.

